infrastructure of cryostat w.hofmann, k.t.knoepfle mpik (heidelberg, germany) l.b.bezrukov,...

INFRASTRUCTURE of CRYOSTAT

W.Hofmann, K.T.KnoepfleMPIK (Heidelberg, Germany)

L.B.Bezrukov, V.N.Kornoukhov(INR RAS, Moscow, Russia)

V.N.Cryshtal, E.A.Bogdanov(CRYOGENMASH, Balaschikha, Russia)

Plan of Hall ACRYOSTAT

WATER TANK

PIPELINE

ASSEMBLY JOINT

PIPLINES of LN2 and N2-gas,

PIPELINE of EVACUATION of SUPERINSULATION HOUSING

FORE-VACUUME PUMP

VACUUM PUMP

CRYOGETTER PUMP

RESERVOIR V = 10 m3

EVAPORATOR of PRESSURIZATION/EVACUATION SYSTEM

Systems of the infrastructure

1. Thermostating system (two versions). 2. Cryostat LN2 filling system. 3. LN2 drainage/LN2 evacuation system. 4. Vacuum Superinsulation housing

system. 5. System “hatch plug/cork open”. 6. Safety system.

Infrastructure of cryostat

First version of the infrastructure:cooling machine for thermostating

25õ1,4 100õ2

ì àø èí àãàçî âàÿ

Äðåí àæ

N2 2H O

Í Ð

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æèäêî ñòèÝâàêóàöèÿ

í àñî ñÒóðáî ì î ëåêóëÿðí û é

í àñî ñ 70õ2

Ñõåì à ï ðèí öèï èàëüí àÿ

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100õ2 325õ10

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àòì

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15õ1

âàêóóì à

System “open hatch plug/cork”

Vessel for thermostating system

Cryostat from CRYOGENMASH

5g if mass of cryostat is 22650 kg.10. Allowable acceleration in vertical direction

3g if mass of cryostat is 22650 kg.10. Allowable acceleration in horzontal direction

980130827301189227334106320

73803668059330

0,11,33*10

0,20,3226502804,00,341

ribs botton cap shell of the vessel upper cap lower flange of the neck shell of the neck upper flange of the neck cap of the neck including:9. Mass of inner vessel kg8. Mass of Cu shielding, kg7. Mass of cryostat with Cu shielding, kg

L*micro torr/s m3*Pa/sec6. Leakage into suprinsulation housing,5. Overpressure (outer shell), MPa4. Pressure, MPa3. Mass of empty cryostat, kg W/hour kg/hour2. Loss of LN2 (evaporation), %/day1. Volume, m3

TECHNICAL CHARACTERISTICS of CRYOSTAT

200

0

405

0

900

0

820

DETECTOR

CRYOSTAT DISPOSAL

BOTTOM of СRYOSTAT

Cryostat made of s.steel + Cu shielding

3290

3440

3500

4000

1760

1325

3500

4000

4500

1150

4500

1325

1150

Mounting of Cu-shielding at S.S. cryostat

Элемент медного экрана

Медный экран

Шпангоут

Стенка сосуда

Крепление40 шт

Крепление

18°

20 шт. в первом слое

первого слоя

Крепление медного экрана первого слоя к шпангоуту

Болт М10

Ввертыш

или слой экрана

М10

М20

Крепление медного экрана

Шпангоут12

Шайба

O34

Infrastructure of cryostat_Rus